Page 193 - (DK) The Ultimate Visual Dictionary 2nd Ed.

BIRDS 2

BONES OF A BIRD’S WING 1st digit
Carpal
3rd digit
Radius
Humerus Metacarpals 2nd digit
Carpal
Ulna
Alula (spurious wing)
FEATHERS OF A BIRD’S WING

Minor
coverts

Major
coverts

Secondary flight feathers
(secondary remiges)

Downcurved Primary flight feathers
STRUCTURE OF A FEATHER (primary remiges)
edge
Rachis (shaft)
Outer vane

Tip

Calamus (quill)

Upcurved edge
Inner vane

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